Index: uspace/lib/posix/stdio.c
===================================================================
--- uspace/lib/posix/stdio.c	(revision 09b0b1fbc6c02a44ef1a910eec88f965ac83e320)
+++ uspace/lib/posix/stdio.c	(revision 09b0b1fbc6c02a44ef1a910eec88f965ac83e320)
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2011 Jiri Zarevucky
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libposix
+ * @{
+ */
+/** @file
+ */
+
+#define POSIX_INTERNAL
+
+#include "common.h"
+#include "stdio.h"
+
+FILE *posix_freopen(const char *restrict filename,
+                    const char *restrict mode,
+                    FILE *restrict stream)
+{
+	// TODO
+	not_implemented();
+}
+
+void posix_perror(const char *s)
+{
+	// TODO
+	not_implemented();
+}
+
+/** @}
+ */
+
Index: uspace/lib/posix/stdio.h
===================================================================
--- uspace/lib/posix/stdio.h	(revision ceebf0ab7dc6386d19bdd8adc9db0bbbe1274709)
+++ uspace/lib/posix/stdio.h	(revision 09b0b1fbc6c02a44ef1a910eec88f965ac83e320)
@@ -33,4 +33,17 @@
 
 #define putc fputc
+#define getc fgetc
+
+
+extern FILE *posix_freopen(const char *restrict filename,
+                           const char *restrict mode,
+                           FILE *restrict stream);
+
+extern void posix_perror(const char *s);
+
+#ifndef POSIX_INTERNAL
+	#define freopen posix_freopen
+	#define perror posix_perror
+#endif
 
 #endif /* POSIX_STDIO_H_ */
Index: uspace/lib/posix/stdlib.c
===================================================================
--- uspace/lib/posix/stdlib.c	(revision ceebf0ab7dc6386d19bdd8adc9db0bbbe1274709)
+++ uspace/lib/posix/stdlib.c	(revision 09b0b1fbc6c02a44ef1a910eec88f965ac83e320)
@@ -111,4 +111,15 @@
 }
 
+/**
+ * 
+ * @param str
+ * @return
+ */
+int posix_atoi(const char *str)
+{
+	// TODO
+	not_implemented();
+}
+
 /** @}
  */
Index: uspace/lib/posix/stdlib.h
===================================================================
--- uspace/lib/posix/stdlib.h	(revision ceebf0ab7dc6386d19bdd8adc9db0bbbe1274709)
+++ uspace/lib/posix/stdlib.h	(revision 09b0b1fbc6c02a44ef1a910eec88f965ac83e320)
@@ -65,4 +65,7 @@
 extern long double posix_strtold(const char *restrict nptr, char **restrict endptr);
 
+/* decimal to native integer conversion */
+extern int posix_atoi(const char *str);
+
 #ifndef LIBPOSIX_INTERNAL
 	#define qsort posix_qsort
@@ -73,4 +76,6 @@
 	#define strtod posix_strtod
 	#define strtold posix_strtold
+	
+	#define atoi posix_atoi
 #endif